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bpo-41710: Add _PyTime_AsTimespec_clamp() (GH-28629)

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Add the _PyTime_AsTimespec_clamp() function: similar to
_PyTime_AsTimespec(), but clamp to _PyTime_t min/max and don't raise
an exception.

PyThread_acquire_lock_timed() now uses _PyTime_AsTimespec_clamp() to
remove the Py_UNREACHABLE() code path.

* Add _PyTime_AsTime_t() function.
* Add PY_TIME_T_MIN and PY_TIME_T_MAX constants.
* Replace _PyTime_AsTimeval_noraise() with _PyTime_AsTimeval_clamp().
* Add pytime_divide_round_up() function.
* Fix integer overflow in pytime_divide().
* Add pytime_divmod() function.
This commit is contained in:
Victor Stinner 2021-09-30 02:11:41 +02:00 • committed by GitHub
parent 8d3e7eff09
commit 09796f2f14
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8 changed files with 270 additions and 92 deletions
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Modules/socketmodule.c
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@ -758,7 +758,7 @@ internal_select(PySocketSockObject *s, int writing, _PyTime_t interval,
Py_END_ALLOW_THREADS;
#else
if (interval >= 0) {
_PyTime_AsTimeval_noraise(interval, &tv, _PyTime_ROUND_CEILING);
_PyTime_AsTimeval_clamp(interval, &tv, _PyTime_ROUND_CEILING);
tvp = &tv;
}
else